21387438514

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1963231}}^1$

素因数の和:1963665

約数の個数: 16

約数和(自身を含む): 34631412480

約数和(自身を除く): 13243973966

約数列:

[1, 2, 13, 26, 419, 838, 5447, 10894, 1963231, 3926462, 25522003, 51044006, 822593789, 1645187578, 10693719257, 21387438514]

約数ペア:

[(1, 21387438514), (2, 10693719257), (13, 1645187578), (26, 822593789), (419, 51044006), (838, 25522003), (5447, 3926462), (10894, 1963231)]